[protege-dev] Exception and problems when using getSelectedObject()

[Leila Bayoudhi]

But, I tried to select a property and the error remains the same.
--------------------------------------------
En date de : Dim 5.2.17, Lorenz B. <buehmann at informatik.uni-leipzig.de> a écrit :

 Objet: Re: [protege-dev] Exception and problems when using getSelectedObject()
 À: protege-dev at mailman.Stanford.EDU
 Date: Dimanche 5 février 2017, 11h44
 
 
   
 
     
   
   
     Ehm, a NullPointerException should be obvious...
 
     if no property is selected resp. the last was
 unselected, the
     returned value will be NULL of course. 
 
     Hi,
       I am developing a protege plugin and I want to get the
 selected
       object property from an
 owlobjectPropertySelectorPanel, So I
       introduced this line to check such requirement
       JLabel lab=new
 JLabel(objectPropPanel.getSelectedObject().asOWLObjectProperty().getIRI().getFragment());An
       exception at this line was raised(captured from the
 console or
       log)
       NullPointerException: null ..... (XYZ.java:81)
         Could you please help me, was my use of
 getSelectedObject is
         incorrect?
         Thank you in advance. 
 
         
         View this message in context: Exception
           and problems when using getSelectedObject()
 
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           Developer mailing list archive at Nabble.com.
 
         
 
         
         
 
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       -- 
 Lorenz Bühmann
 AKSW group, University of Leipzig
 Group: http://aksw.org - semantic web
 research center
     
   
 
 
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